The Åland Islands or Åland is an autonomous, demilitarised, monolingually Swedish-speaking region of Finland that consists of an archipelago lying at the entrance to the Gulf of Bothnia in the Baltic Sea.
Åland comprises Fasta Åland ("Main Island", on which 90% of the population resides) and a further 6,500 skerries and islands to its east. Fasta Åland is separated from the coast of Sweden by 38 kilometres of open water to the west. In the east, the Åland archipelago is contiguous with the Finnish Archipelago Sea. Åland's only land border is located on the uninhabited skerry of Märket, which it shares with Sweden.
The autonomous status of the islands was affirmed by a decision made by the League of Nations in 1921 following the Åland crisis. It was reaffirmed within the treaty admitting Finland to the European Union. By law, Åland is politically neutral and entirely demilitarised, and residents are exempt from conscription to the Finnish Defence Forces. The islands were granted extensive autonomy by the Parliament of Finland in the Act on the Autonomy of Åland of 1920, which was later replaced by new legislation by the same name in 1951 and 1991. Åland remains exclusively Swedish-speaking by law.